P R E L I M I N A R Y
[LCDDL3鈥揕CDDL0]............................................................................................................... 41
LVDD..................................................................................................................................... 41
LVEE ..................................................................................................................................... 41
M ........................................................................................................................................... 42
Miscellaneous Interface ............................................................................................................. 42
LF1, LF2, LF3, LF4 (Analog inputs) ...................................................................................... 42
X1OUT [BAUD_OUT]............................................................................................................ 42
[X14OUT] .............................................................................................................................. 42
X32IN, X32OUT .................................................................................................................... 42
Local Bus Interface .................................................................................................................... 42
A23鈥揂12 ............................................................................................................................... 42
ADS....................................................................................................................................... 42
BHE....................................................................................................................................... 42
BLE ....................................................................................................................................... 42
CPUCLK................................................................................................................................ 43
CPURDY ............................................................................................................................... 43
CPURST ............................................................................................................................... 43
D/C ........................................................................................................................................ 43
LDEV..................................................................................................................................... 43
LRDY..................................................................................................................................... 43
M/IO ...................................................................................................................................... 43
W/R ....................................................................................................................................... 43
Maximum ISA Bus Interface ...................................................................................................... 43
0WS ...................................................................................................................................... 43
BALE ..................................................................................................................................... 43
DACK7, DACK6, DACK5, DACK3, DACK2, DACK1, DACK0 .............................................. 43
DRQ7, DRQ6, DRQ5, DRQ3, DRQ2, DRQ1, DRQ0 ............................................................ 43
IOCHCHK.............................................................................................................................. 43
IRQ15, IRQ14, IRQ12鈥揑RQ9, IRQ7鈥揑RQ3, IRQ1 ................................................................. 44
LA23鈥揕A17 ........................................................................................................................... 44
LMEG .................................................................................................................................... 44
JTAG Boundary Scan Interface ................................................................................................. 44
JTAGEN ................................................................................................................................ 44
[TCK] ..................................................................................................................................... 44
[TDI] ...................................................................................................................................... 44
[TDO]..................................................................................................................................... 44
[TMS]..................................................................................................................................... 44
Reset and Power ....................................................................................................................... 44
AGND.................................................................................................................................... 44
AVCC .................................................................................................................................... 44
GND ...................................................................................................................................... 45
IORESET .............................................................................................................................. 45
RESIN ................................................................................................................................... 45
VCC....................................................................................................................................... 45
VCC1..................................................................................................................................... 45
VCC5..................................................................................................................................... 45
VMEM ................................................................................................................................... 45
VSYS..................................................................................................................................... 45
VSYS2................................................................................................................................... 45
Functional Description ............................................................................................................... 45
Am386SXLV CPU Core ........................................................................................................ 45
Memory Controller ................................................................................................................. 46
SRAM .................................................................................................................................... 49
8
脡lan鈩C300 Microcontroller Data Sheet